#include<iostream>
using namespace std;
class Box{
	private:
		int length,width,height;
	public:
		Box(int l,int w,int h):length(l),width(w),height(h){}
		void volum(){
			cout<<length*width*height;
		}
};
int main()
{
	int l1,w1,h1;
    cin>>l1>>w1>>h1;
    Box R1(l1,w1,h1);
    R1.volum();
    return 0;
}